Permanent waves are also known as perms, which are a popular hairstyle that involves the use of chemicals to alter the structure of naturally straight hair to create curls or waves. Another term for permanent waves is textured hair. People with permanent waves often use the term "curly perm" or "wave perm" to describe their hairstyle. Another synonym for permanent waves could be "chemically treated hair" or "chemically altered texture." Ultimately, permanent waves are a trendy and convenient way to change up your hairstyle and add volume and texture to your hair, and there are several synonyms to describe this popular hair treatment.